Java Doc for ExternalCommand.java in  » Net » GNetWatch » net » fenyo » gnetwatch » actions » Java Source Code / Java DocumentationJava Source Code and Java Documentation

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Java Source Code / Java Documentation » Net » GNetWatch » net.fenyo.gnetwatch.actions   Source Cross Reference   Class Diagram   Java Document (Java Doc)   java.lang.Object    net.fenyo.gnetwatch.actions.ExternalCommand ExternalCommand public class ExternalCommand (Code) Instances of this class launch and manage processes outside of the JVM. author:    Alexandre Fenyo version:    $Id: ExternalCommand.java,v 1.14 2007/03/03 00:38:20 fenyo Exp $ Constructor Summary public   ExternalCommand(String[] cmdLine, String directory)      Creates an ExternalCommand instance and saves the command line. public   ExternalCommand(String[] cmdLine)      Creates an ExternalCommand instance and saves the command line. public   ExternalCommand(String[] cmdLine, boolean merge)      Creates an ExternalCommand instance and saves the command line. Method Summary public  void end()      Make sure the underlying file descriptors are closed, to avoid maintening unused resources in an application server JVM for instance. any thread. none. public synchronized  void fork()      Launches a process but do not wait for its completion. any thread. none. public synchronized  void logArgs()      Displays command line arguments. any thread. none. public synchronized  String readLineStderr()      Reads one line of the stderr. any thread. none. public synchronized  String readLineStdout()      Reads one line of the stdout. any thread. none. public synchronized  String readStderr()      Reads stderr. Waits for the closure of the process output stream. Note that this method can return before the process completion. any thread. none. public synchronized  String readStdout()      Reads stdout. Waits for the end of the process output stream. Note that this method can return before the process completion. any thread. none. public synchronized  String readStdoutStderr()      Merges stdout and stderr. Waits for the end of the process output stream. Note that this method can return before the process completion. any thread. none. public synchronized  String runStdout()      Reads the whole standard output. public synchronized  String runStdoutStderr()      Reads the whole output. Constructor Detail ExternalCommand public ExternalCommand(String[] cmdLine, String directory)(Code) Creates an ExternalCommand instance and saves the command line. any thread. Parameters:   cmdLine - command line. Parameters:   directory - path to the current directory for the script to be launched. ExternalCommand public ExternalCommand(String[] cmdLine)(Code) Creates an ExternalCommand instance and saves the command line. any thread. Parameters:   cmdLine - command line. ExternalCommand public ExternalCommand(String[] cmdLine, boolean merge)(Code) Creates an ExternalCommand instance and saves the command line. any thread. Parameters:   cmdLine - command line. Parameters:   merge - merge standard output and standard error. Method Detail end public void end() throws IOException(Code) Make sure the underlying file descriptors are closed, to avoid maintening unused resources in an application server JVM for instance. any thread. none. void. throws:   IOException - error while closing streams. fork public synchronized void fork() throws IOException(Code) Launches a process but do not wait for its completion. any thread. none. void. throws:   IOException - i/o exception before reading the process output stream. logArgs public synchronized void logArgs()(Code) Displays command line arguments. any thread. none. void. readLineStderr public synchronized String readLineStderr() throws IOException, InterruptedException(Code) Reads one line of the stderr. any thread. none. void. throws:   IOException - i/o exception while reading the process output stream. readLineStdout public synchronized String readLineStdout() throws IOException, InterruptedException(Code) Reads one line of the stdout. any thread. none. void. throws:   IOException - i/o exception while reading the process output stream. readStderr public synchronized String readStderr() throws IOException, InterruptedException(Code) Reads stderr. Waits for the closure of the process output stream. Note that this method can return before the process completion. any thread. none. void. throws:   IOException - i/o exception while reading the process output stream. readStdout public synchronized String readStdout() throws IOException, InterruptedException(Code) Reads stdout. Waits for the end of the process output stream. Note that this method can return before the process completion. any thread. none. void. throws:   IOException - i/o exception while reading the process output stream. readStdoutStderr public synchronized String readStdoutStderr() throws IOException, InterruptedException(Code) Merges stdout and stderr. Waits for the end of the process output stream. Note that this method can return before the process completion. any thread. none. void. throws:   IOException - i/o exception while reading the process output stream. runStdout public synchronized String runStdout() throws InterruptedException(Code) Reads the whole standard output. whole standard output. throws:   InterruptedException - interrupted. runStdoutStderr public synchronized String runStdoutStderr() throws InterruptedException(Code) Reads the whole output. whole output. throws:   InterruptedException - exception. Methods inherited from java.lang.Object native protected Object clone() throws CloneNotSupportedException(Code)(Java Doc) public boolean equals(Object obj)(Code)(Java Doc) protected void finalize() throws Throwable(Code)(Java Doc) final native public Class getClass()(Code)(Java Doc) native public int hashCode()(Code)(Java Doc) final native public void notify()(Code)(Java Doc) final native public void notifyAll()(Code)(Java Doc) public String toString()(Code)(Java Doc) final native public void wait(long timeout) throws InterruptedException(Code)(Java Doc) final public void wait(long timeout, int nanos) throws InterruptedException(Code)(Java Doc) final public void wait() throws InterruptedException(Code)(Java Doc)